RHSA-2020:3090

Vulnerability from csaf_redhat - Published: 2020-07-22 08:09 - Updated: 2025-11-21 18:15
Summary
Red Hat Security Advisory: Red Hat OpenShift Service Mesh 1.1 servicemesh-proxy security update

Notes

Topic
An update for servicemesh-proxy is now available for OpenShift Service Mesh 1.1. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for installation into an on-premise OpenShift Container Platform installation. Security Fix(es): * envoyproxy/envoy: incorrectly validates TLS certificates when using wildcards for DNS SAN's (CVE-2020-15104) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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      {
        "category": "summary",
        "text": "An update for servicemesh-proxy is now available for OpenShift Service Mesh 1.1.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Red Hat OpenShift Service Mesh is Red Hat\u0027s distribution of the Istio service mesh project, tailored for installation into an on-premise OpenShift Container Platform installation.\n\nSecurity Fix(es):\n\n* envoyproxy/envoy: incorrectly validates TLS certificates when using wildcards for DNS SAN\u0027s (CVE-2020-15104)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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    "title": "Red Hat Security Advisory: Red Hat OpenShift Service Mesh 1.1 servicemesh-proxy security update",
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  "vulnerabilities": [
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      "cve": "CVE-2020-15104",
      "cwe": {
        "id": "CWE-297",
        "name": "Improper Validation of Certificate with Host Mismatch"
      },
      "discovery_date": "2020-07-09T00:00:00+00:00",
      "ids": [
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          "category": "description",
          "text": "An improper certificate validation vulnerability was found in envoyproxy/envoy, when externally created certificates with wildcards in the DNS Subject Alternative Name are used. This flaw allows an attacker to subvert the envoy filter or destination rules to access restricted resources. The highest threat from this vulnerability is to confidentiality.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "envoyproxy/envoy: incorrectly validates TLS certificates when using wildcards for DNS SAN\u0027s",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "For OpenShift ServiceMesh to be affected by this vulnerability, it must be configured to validate externally issued certificates. By default, ServiceMesh does not issue certificates that use DNS wildcard SANs.",
          "title": "Statement"
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1856232"
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          "category": "external",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15104"
        },
        {
          "category": "external",
          "summary": "https://istio.io/latest/news/security/istio-security-2020-008/",
          "url": "https://istio.io/latest/news/security/istio-security-2020-008/"
        }
      ],
      "release_date": "2020-07-08T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-07-22T08:09:04+00:00",
          "details": "The OpenShift Service Mesh release notes provide information on the features and\nknown issues:\n\nhttps://docs.openshift.com/container-platform/latest/service_mesh/servicemesh-release-notes.html",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2020:3090"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "8Base-OSSM-1.1:servicemesh-proxy-0:1.1.5-1.el8.src",
            "8Base-OSSM-1.1:servicemesh-proxy-0:1.1.5-1.el8.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "envoyproxy/envoy: incorrectly validates TLS certificates when using wildcards for DNS SAN\u0027s"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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